Angiomyolipoma is called a benign tumor, which has a complex structure. It is composed of adipose tissue,
muscle fibers of blood vessels and reshaped. This tumor is usually localized in the kidney, but can be located in the pancreas.
There are two types of kidney angiomyolipomas:
1. The sporadic or isolated. This is the most common form of the disease. It is observed in 90% of cases;
2. Congenital. With this type of renal angiomyolipomas occur against the backdrop of the hereditary form of tuberous sclerosis (disease-Burnevilya accepted). In this case, the tumors are usually located on both kidneys and in large quantities.
Rebirth angiomyolipomas in cancer (malignancy) is very rare.
Renal angiomyolipoma: causes
To develop angiomyolipomas kidney can lead to various reasons. In some cases, the tendency to the appearance of this disease is inherited. Often the cause of renal angiomyolipomas are various diseases of the body. Furthermore, this type of tumors has receptors for female sex hormones (estrogen and progesterone). This explains the fact that this pathology is several times more common in women than in men, as well as the rapid growth of angiomyolipomas kidneys during pregnancy.
The main clinical symptoms of renal angiomyolipomas are:
- Drawing pain in the lumbar region and the abdomen. These pains are often caused by bleeding from a blood vessel tumor modified. When significant bleeding the patient may develop hemorrhagic shock, peritonitis;
- Development of hypertension;
- With a large amount of angiomyolipomas kidney tumor can be felt during palpation;
- The appearance of blood in the urine (hematuria).
Most often angiomyolipomas are small and do not show any clinical symptoms. As a result, these tumors are diagnosed absolutely by chance during an ultrasound examination of the kidneys, carried out for any other reason.
angiomyolipomas kidney is based on the basis of symptoms, physical examination data, laboratory (general analysis of blood and urine tests, blood biochemistry) and instrumental investigations (ultrasound, angiography of the kidneys, computer or magnetic resonance imaging). In cases where there is a suspicion of malignancy angiomyolipomas, kidney biopsy followed by histological and cytological examination of tissue obtained.
In cases where the tumor is small and does not manifest itself by clinical symptoms, and no tendency to increase - angiomyolipomas treatment is not carried out. The patient should be followed up by a urologist and undergo regular kidney ultrasound.
With the rapid growth of angiomyolipomas or significant tumor size, when there is a high probability of fracture is shown surgical intervention. With a small amount angiomyolipomas perform enucleation of the tumor and partial resection of the kidney. The presence of huge angiomyolipomas and its malignancy is an indication for nephrectomy - removal of the affected kidney.
When you break the blood vessels angiomyolipomas and development of internal bleeding perform emergency surgery. Timely implementation of the operation to prevent the development of dangerous complications such as peritonitis and hemorrhagic shock, which can lead to death of the patient.